EP1971484B1 - A waterproof sheet and a process for the manufacturing thereof - Google Patents
A waterproof sheet and a process for the manufacturing thereof Download PDFInfo
- Publication number
- EP1971484B1 EP1971484B1 EP06849093.7A EP06849093A EP1971484B1 EP 1971484 B1 EP1971484 B1 EP 1971484B1 EP 06849093 A EP06849093 A EP 06849093A EP 1971484 B1 EP1971484 B1 EP 1971484B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- layers
- sheet
- waterproof
- spunbonded fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
- 238000000034 method Methods 0.000 title description 7
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000004744 fabric Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 229920001059 synthetic polymer Polymers 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000035515 penetration Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- -1 acryl Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/10—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer reinforced with filaments
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/42—Alternating layers, e.g. ABAB(C), AABBAABB(C)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2274/00—Thermoplastic elastomer material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
- B32B2419/04—Tiles for floors or walls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24752—Laterally noncoextensive components
- Y10T428/2476—Fabric, cloth or textile component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/674—Nonwoven fabric with a preformed polymeric film or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/681—Spun-bonded nonwoven fabric
Definitions
- the present invention relates to a waterproof sheet and a process for the manufacturing thereof.
- Waterproof products employed when a protection from water is needed are known in the state of the art; some of said products are, for example, bituminous membranes, sheets made of PVC, sheets made of rubber, etc..
- Bituminous membranes are manufactured by immersing frameworks, among which polyester spunbonded fabrics, in a bath of bituminous mixture which is warm enough to obtain, after cooling, rolls displaying a height of approximately 1 metre, a length of approximately 10 metres and a weight varying from 350 g/sqm to 5 kg/sqm and greater.
- the laying occurs by unwinding the roll of membrane on the surface to waterproof, inducing it to adhere mainly by means of flame-hardening of the back with a flame blowpipe, in order for the slightly molten part to attach to the surface.
- Another membrane roll is unwound parallelly to the first one taking care to overlap it by a width of at least 5 cm.
- the overlapping part is flame-hardened and pressed along the contact line in order to link the two layers of membrane.
- the critical part is the junction area between the rolls, which may allow the penetration of water if not properly manufactured.
- the membranes made of PVC are synthetic sheets obtained by extrusion of "polyvinil chloride" polymer.
- Generally commercially available rolls have a height even taller than one metre, lengths of 15 - 20 m and different thicknesses.
- the roll is stretched out on the surface and another roll is stretched out parallelly to the first taking care to overlap it by a width of a least 10 cm.
- the overlapping part is linked by means of a chemical compound which fuses the PVC on the surface or by means of a hot air gun that melts and links the overlapping edges, by exploiting the low melting point of the PVC.
- An inert layer is normally deposited on the PVC layers, having the function of makeweight, in order to allow the attachment of the PVC membrane to the surface. A possible penetration of water, caused by poor junctions, does not remain restricted to the penetration spot and instead spreads under the cover.
- US 6,100,208 discloses an outdoor fabric having a water impermeable barrier layer positioned between first and second multicomponent fiber layers.
- said object is achieved by means of a sheet comprising at least one layer of waterproof material arranged between a first and a second layer of spunbonded fabric, characterised in that said layers of spunbonded fabric have a surface covered by waterproof material and are laterally offset one with respect to the other so as to display a projection of the first layer with respect to the second layer on one side and a projection of the second layer with respect to the first layer on the opposite side, in that said at least one layer of waterproof material is comprised of a plastomeric film and in that said projections having waterproof material are visible in order to allow a better adhesion between the sheets.
- FIG. 1-2 there is shown a process for manufacturing a waterproof sheet 1 for buildings according to the present invention.
- Said sheet 1 is manufactured through a first step, in which a plastomeric film 2 is extruded from an extruder 101 on a surface of a layer 3 of spunbonded fabric, for example, made of reinforced polyester, deriving from a roll 102 to form a roll 103 of waterproof spunbonded fabric 106, i.e: with plastomeric film adhering thereto ( figure 1 ).
- a plastomeric film 2 is extruded from an extruder 101 on a surface of a layer 3 of spunbonded fabric, for example, made of reinforced polyester, deriving from a roll 102 to form a roll 103 of waterproof spunbonded fabric 106, i.e: with plastomeric film adhering thereto ( figure 1 ).
- two layers of spunbonded fabric 106 deriving from two rolls 103 are coupled one to the other with the interposition of a further plastomeric film 100 deriving from an extruder 105 (for example, the same above-mentioned extruder 101) to form a roll 104 of waterproof sheet 1 ( figure 2 ).
- an extruder 105 for example, the same above-mentioned extruder 101
- a roll 104 of waterproof sheet 1 figure 2
- the insertion of film 100 is carried out in order to avoid leaks from occurring in the waterproof layer and to allow the complete adhesion adapted to form waterproof sheet 104.
- Layers 3 are adapted to serve as a mechanical protection for films 2 and 100 and to also provide an extreme dimensional stability, in particular if they are in turn reinforced with high toughness longitudinal filaments.
- Layer 100 has an extension greater than each layer 106; layers 106 preferably have an identical extension.
- the two layers of spunbonded fabric are laterally offset one with respect to the other, i.e. the side ends of layers 106 are not reciprocally aligned, so as to leave two side portions 20 of layers 106 free, the two side portions being arranged by the sides of the sheet, ( figure 4 ).
- Each side portion 20 extends for the whole length of the sheet and has a suitable width for the adhesion in the application step. The presence of said offset side portions 20 allows the coupling of different sheets 1.
- the laying occurs by unwinding a first roll of sheet 1 on a surface.
- a second roll of sheet 1 is stretched out parallelly to the first but so that the offset side portions 20 of the two sheets are arranged one on the other taking care to match them ( figure 5 ).
- the junction does not occur on the layer on spunbonded fabric, which is always a porous element, but on film 100 instead.
- the overlapping side portions 20 are linked to one another by means of waterproof butyl-based or acryl-based or other adhesive means 107.
- the laying technique does not require the use of special equipment and the laying may also take place in the presence of water.
- inert material may be used as makeweight or the surface may be brushed with a bituminous primer (to which the spunbonded fabric is perfectly suited) and then induce sheet 1 to adhere.
- Sheet 1 is adapted to protect the surfaces from the penetration of water.
- Figure 5 shows a cover to protect a floor from the penetration of water with sheets 1 according to the invention, before the construction of the new paving.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000006A ITMI20060006A1 (it) | 2006-01-03 | 2006-01-03 | Telo impermeabile e relativo processo di produzione |
PCT/EP2006/070221 WO2007077182A1 (en) | 2006-01-03 | 2006-12-27 | A waterproof sheet and a process for the manufacturing thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1971484A1 EP1971484A1 (en) | 2008-09-24 |
EP1971484B1 true EP1971484B1 (en) | 2017-03-22 |
Family
ID=37907415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06849093.7A Not-in-force EP1971484B1 (en) | 2006-01-03 | 2006-12-27 | A waterproof sheet and a process for the manufacturing thereof |
Country Status (10)
Country | Link |
---|---|
US (1) | US7790642B2 (ja) |
EP (1) | EP1971484B1 (ja) |
JP (1) | JP2009522467A (ja) |
CN (1) | CN101351334B (ja) |
BR (1) | BRPI0620882A2 (ja) |
CA (1) | CA2633635A1 (ja) |
EA (1) | EA200870147A1 (ja) |
HK (1) | HK1126450A1 (ja) |
IT (1) | ITMI20060006A1 (ja) |
WO (1) | WO2007077182A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010000037A1 (en) * | 2008-07-03 | 2010-01-07 | Infrastructure Technology Limited | Membrane |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5266390A (en) * | 1992-06-19 | 1993-11-30 | Tufco Industries Inc. | Multi-layered plastic dropcloth and like sheet-like covers |
US6100208A (en) * | 1996-10-31 | 2000-08-08 | Kimberly-Clark Worldwide, Inc. | Outdoor fabric |
-
2006
- 2006-01-03 IT IT000006A patent/ITMI20060006A1/it unknown
- 2006-12-27 CA CA 2633635 patent/CA2633635A1/en not_active Abandoned
- 2006-12-27 JP JP2008547958A patent/JP2009522467A/ja active Pending
- 2006-12-27 EP EP06849093.7A patent/EP1971484B1/en not_active Not-in-force
- 2006-12-27 US US12/086,891 patent/US7790642B2/en not_active Expired - Fee Related
- 2006-12-27 CN CN2006800503362A patent/CN101351334B/zh not_active Expired - Fee Related
- 2006-12-27 BR BRPI0620882A patent/BRPI0620882A2/pt not_active IP Right Cessation
- 2006-12-27 WO PCT/EP2006/070221 patent/WO2007077182A1/en active Application Filing
- 2006-12-27 EA EA200870147A patent/EA200870147A1/ru unknown
-
2009
- 2009-06-11 HK HK09105249A patent/HK1126450A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP1971484A1 (en) | 2008-09-24 |
CN101351334B (zh) | 2011-06-22 |
WO2007077182A1 (en) | 2007-07-12 |
US20090011196A1 (en) | 2009-01-08 |
HK1126450A1 (en) | 2009-09-04 |
JP2009522467A (ja) | 2009-06-11 |
ITMI20060006A1 (it) | 2007-07-04 |
BRPI0620882A2 (pt) | 2016-08-30 |
US7790642B2 (en) | 2010-09-07 |
CN101351334A (zh) | 2009-01-21 |
EA200870147A1 (ru) | 2009-02-27 |
CA2633635A1 (en) | 2007-07-12 |
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